Synthesis and Catalytic Application of Homo-bimetallic Metallocene Complexes as Ethylene Polymerization Catalysts  

作　　者：冯作锋 黄吉玲 钱延龙 孙俊全 陈伟 

出　　处：《Chinese Journal of Chemistry》2002年第11期1401-1405,1133,共5页中国化学（英文版）

基　　金：theMajorStateBasicResearchDevelopmentProgram (No .G 19990 6 480 1)andtheNationalNaturalScienceFoundationofChina (No .2 0 0 72 0 0 4)

摘　　要：Three new homo-bimetallic metallocene complexes were prepared by RCpMCl3 (M= Ti, Zr) and Si-bridged compounds, and were all well characterized structurally. These complexes with the methylaluminoxane (MAO) are highly active catalysts for the polymerization of ethylene. Compared to the polyethylene obtained by Cp2ZrCl2, the molecular weight (Mw = 78784–238021) of the polyethylene was higher and the molecular weight distribution (MwD = 2.10–2.44) was broader.Three new homo-bimetallic metallocene complexes were prepared by RCpMCl3 (M= Ti, Zr) and Si-bridged compounds, and were all well characterized structurally. These complexes with the methylaluminoxane (MAO) are highly active catalysts for the polymerization of ethylene. Compared to the polyethylene obtained by Cp2ZrCl2, the molecular weight (Mw = 78784–238021) of the polyethylene was higher and the molecular weight distribution (MwD = 2.10–2.44) was broader.

关 键 词：BIMETALLIC ZIRCONIUM titanium METALLOCENE CATALYSIS POLYETHYLENE 

分 类 号：O643.3[理学—物理化学]